FR4 Epoxy Fiber Glass Sheet for Transformer

Production Description

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  FR4 Epoxy Fiber Glass Sheet for Transformer is a composite sheet material that consists of glass fabric, electrical grade epoxy resin. Its nature color is light green and the surface is smooth with no bubble. Also, it has Extremely high mechanical strength, good dielectric loss properties, good electrical strength properties, machinability, and flame resistance (UL94-V0).

 

Shipment

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  The total delivery time is calculated from the time your order is placed to the time it is delivered to you. Total delivery time is broken down into processing time and shipping time. Once you place the order for FR4 Epoxy Fiber Glass Sheet for Transformer Accessories, we will try our best to make sure you can get your items ASAP.

  Processing includes preparing your items, performing quality checks, and packing for shipment. We have more than 170 employees, and is equipped with strong technical force, advanced technical equipment, complete testing equipment, six domestically most advanced gum-dipping drying production equipment as well as two environmental control equipment used for the cyclic utilization of exhaust gas incineration afterheat. That is all for ensuring you to get FR4 sheet with the shortest time and the best quantity.

  Shipment time is for your items to travel from our warehouse to your place. We have our own logistics company, so it can provide safe and fast service to you.

  The faster you place the order for FR4 Fiberglass Sheet for Business for Transformer, the shorter time it will take you to get your items.

 

Technical Data for FR4

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NO	TEST ITEMS	UNIT	TEST RESULT	TEST METHOD
1	Bending Strength Perpendicular to Laminations	MPa	571	GB/T 1303.4-2009
2	Compressive Strength Perpendicular to Laminations compressive	MPa	548
3	Parallel Layer Impact Strength (Simply Supported Beam, Gap)	KJ/m²	57.3
4	Tensile Strength	MPa	282
5	Vertical Layer Breakdown Voltage (90℃ + 2℃, 25# transformer oil, 20s step by step boost, φ25mm/φ75mm cylinder electrode system)	kV/mm	16.7
6	Parallel Layer Breakdown Voltage (90℃ + 2℃, 25# transformer oil, 20s step by step boost, φ130mm/φ130mm flat plate electrode system)	kV	＞100
7	Relative Permittivity (50HZ)	-	5.40
8	Dielectric Dissipation Factor (50HZ)		7.2*10-3
9	Insulation Resistance after Soaking	Ω	2.2*1013
10	Density	g/cm3	2.01
11	Water Absorption	mg	5.3
12	Barcol Hardness	-	76	GB/T 3854-2005
13	Flammability	Grade	V-0	GB/T 2408-2008
REMARK: 1. NO.2 the sample height is (5.00~5.04) mm; 2. NO.5 the sample thickness is (2.02~2.06) mm; 3. NO.6 the sample size is (100.50~100.52)mm*(25.10~25.15)mm*(5.02~5.06)mm thickness, The electrode spacing is (25.10~25.15)mm; 4. NO.11 the sample size is (49.86~49.90)mm*(49.60~49.63)mm*(2.53~2.65)mm; 5. NO.13 the sample size is (13.04~13.22)mm*(3.04~3.12)mm thickness.

 

Wind Power Industry	Solar Industry	Power Battery Pack Industry

It can be machined to various shapes as insulation parts in which the mechanical and electrical properties is required.

 

Factory

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Production Process

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Packaging and Shipping

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Regular packing, Protect by Pallet